Operation Manual

Owner’s Manual
R
PowerBoss, Inc. A Member of the Hako Group © 2007 PowerBoss
®
CORE 50 Sweeper Scrubber Page 39
PowerBoss
®
The Power of Clean
SERVICE INSTRUCTIONS (CONTINUED)
HYDRAULICS SYSTEM (CONTINUED)
CHANGING THE HYDRAULIC FLUID FILTER
1. Raise the hopper and engage the safety arm.
2. Turn off the engine and engage the parking brake.
3. Unscrew the oil filter cartridge from the mount and discard in an approved
manner. The filter is located on the firewall behind the hopper.
4. Apply a thin coating of fluid to the seal of a new filter element.
5. Thread onto the mount and hand tighten.
6. Tighten an additional one-half turn beyond hand tight.
7. Start the machine, shut it off, then check for leakage.
ADJUSTING THE DIRECTIONAL CONTROL RETURN SPRING
You may encounter “creeping” problems from time to time. Creeping means the machine
moves backward or forward when the forward/reverse pedal is in neutral. A grinding noise
when the engine is shut down is also an indicator that the directional control return spring
needs adjusting. If this occurs, perform the procedure which follows:
1. Turn off the engine, engage the parking brake and chock both wheels.
2. Swing the engine frame open and secure with the locking pin.
3. Jack the rear of the machine so that the rear tire just clears the floor. Use
two jack stands to support the machine.
4. Locate the forward / reverse cable adjustment bracket mounted on the inside
edge of the engine frame.
5. Slightly loosen the bolts.
6. From the operator’s seat, start the engine and run at the half throttle.
NOTE
Do not over tighten.
WARNING
DO NOT USE A JACK ALONE TO HOLD THE MACHINE!
WARNING
DO NOT JACK THE MACHINE ON THE ENGINE FRAME!
JACK ONLY AT THE MAIN MACHINE FRAME.